import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import { nextTick } from 'vue'
import { flushPromises } from '@vue/test-utils'
import router from '@/router'
import { ApiError, NetworkError, useApi } from '@/composables/useApi'
import { initializeLocale } from '@/i18n'
import type { ActivityItem } from '@/lib/activity'
import {
	LIST_PATH,
	SUMMARY_PATH,
	callsTo,
	chipTexts,
	clickButton,
	days,
	findButton,
	expectIcon,
	mountActivity,
	queryObject,
	rows,
	stripCards,
	textOf,
	unmountActivity,
} from './activityHarness'
import {
	activityItems,
	anonymous,
	apiKey,
	makeItem,
	pageOf,
	summaryDefault,
	summaryNone,
	summaryZero,
	system,
	target,
	user,
} from './activityFixtures'

vi.mock('@/composables/useApi', async (importOriginal) => {
	const actual = await importOriginal<typeof import('@/composables/useApi')>()
	return { ...actual, useApi: vi.fn() }
})

let toastAdd: ReturnType<typeof vi.fn>

vi.mock('@nuxt/ui/composables', async (importOriginal) => {
	const actual = await importOriginal<typeof import('@nuxt/ui/composables')>()
	return { ...actual, useToast: () => ({ add: toastAdd }) }
})

beforeEach(() => {
	toastAdd = vi.fn()
	localStorage.clear()
	initializeLocale()
})

afterEach(async () => {
	vi.useRealTimers()
	unmountActivity()
	vi.mocked(useApi).mockReset()
	await router.push('/login')
})

function pageText() {
	return textOf(document.body)
}

function stripTexts() {
	return stripCards().map(textOf)
}

describe('Navigation', () => {
	it('lists Activity between Users and Integration with the history icon and the current page', async () => {
		await mountActivity()

		const links = Array.from(
			document.body.querySelectorAll<HTMLAnchorElement>('nav[aria-label="Main"] a'),
		)
		expect(links.map((link) => link.getAttribute('href'))).toEqual([
			'/home',
			'/article',
			'/media',
			'/authors',
			'/users',
			'/schema',
			'/activity',
			'/integration',
			'/settings',
		])
		const activity = links[6]!
		expect(activity.getAttribute('aria-current')).toBe('page')
		await expectIcon(activity, 'history')
		expect(textOf(document.body.querySelector('nav[aria-label="breadcrumb"]'))).toBe('Activity')
		expect(router.currentRoute.value.meta).toEqual({
			auth: 'verified',
			title: 'Activity',
		})
	})
})

describe('Default: an owner sees the strip, the filter bar and a day-grouped table', () => {
	it('draws the header, the strip, the filter bar, the rows and the pager', async () => {
		await mountActivity()

		expect(textOf(document.body.querySelector('h1'))).toBe('Activity')
		expect(pageText()).toContain('Who did what, and when, across your site.')
		expect(findButton('Export')?.disabled).toBe(false)
		expect(stripTexts()).toEqual([
			expect.stringContaining('Total actions'),
			expect.stringContaining('Active people'),
			expect.stringContaining('Failed actions'),
			expect.stringContaining('Security events'),
		])
		expect(stripTexts()[0]).toContain('1,284')
		expect(stripTexts()[0]).toContain('12% vs previous 7 days')
		expect(stripTexts()[1]).toContain('9')
		expect(stripTexts()[1]).toContain('7 people, 2 API keys')
		expect(stripTexts()[2]).toContain('0.5% of all actions')
		expect(stripTexts()[3]).toContain('11 flagged')
		await expectIcon(stripCards()[0], 'trending-up')
		await expectIcon(stripCards()[2], 'circle-x')
		await expectIcon(stripCards()[3], 'shield-alert')

		const search = document.body.querySelector<HTMLInputElement>('input[type="text"]')!
		expect(search.placeholder).toBe('Search activity')
		expect(pageText()).toContain('All people')
		expect(pageText()).toContain('All categories')
		const outcome = document.body.querySelector('[role="group"][aria-label="Outcome"]')!
		expect(outcome.querySelector('[aria-pressed="true"]')?.textContent?.trim()).toBe('All')
		const dates = document.body.querySelector('[role="group"][aria-label="Dates"]')!
		expect(dates.querySelector('[aria-pressed="true"]')?.textContent?.trim()).toBe('7 days')
		expect(chipTexts()).toEqual([])

		expect(rows()).toHaveLength(activityItems.length)
		expect(days()).toEqual(['3 Oct 2026', '2 Oct 2026'])
		expect(textOf(document.body.querySelector('[data-testid="activity-pager"]'))).toContain(
			'Showing 1–25 of 1,284',
		)
		expect(textOf(document.body.querySelector('[data-testid="activity-pager"]'))).toContain(
			'Rows per page',
		)
	})

	it('requests the list and the summary once each with the default query', async () => {
		await mountActivity()

		expect(callsTo(LIST_PATH)).toHaveLength(1)
		expect(queryObject(callsTo(LIST_PATH)[0])).toEqual({
			range: '7d',
			page: '1',
			size: '25',
		})
		expect(callsTo(SUMMARY_PATH)).toHaveLength(1)
		expect(queryObject(callsTo(SUMMARY_PATH)[0])).toEqual({ range: '7d' })
	})

	it('gives every When cell the full local time with seconds as its title', async () => {
		await mountActivity()

		const cells = Array.from(
			document.body.querySelectorAll<HTMLElement>('[data-testid="activity-when"]'),
		)
		expect(cells).toHaveLength(activityItems.length)
		for (const cell of cells) {
			expect(cell.textContent?.trim()).toMatch(/^\d{2}:\d{2}$/)
			expect(cell.title).toMatch(/^\d{1,2} \w{3} 2026, \d{2}:\d{2}:\d{2}$/)
		}
	})
})

describe('Rows: the Actor cell and the sentence follow the event', () => {
	const cases: {
		name: string
		item: ActivityItem
		actor: string
		sentence: string
		badge: string
		shield: boolean
	}[] = [
		{
			name: 'user, success',
			item: makeItem({ id: 1 }),
			actor: 'Marta Alves',
			sentence: 'Published the article Spring release',
			badge: 'Succeeded',
			shield: false,
		},
		{
			name: 'api key',
			item: makeItem({
				id: 2,
				action: 'media.upload',
				category: 'media',
				actor: apiKey(7, 'Website sync'),
				target: target('image', '4', 'north-wall.jpg'),
			}),
			actor: 'Website sync API key',
			sentence: 'Uploaded the image north-wall.jpg',
			badge: 'Succeeded',
			shield: false,
		},
		{
			name: 'system',
			item: makeItem({
				id: 3,
				action: 'system.media_purge',
				category: 'system',
				actor: system,
				target: null,
				params: { merged: 3, articles_updated: 5 },
			}),
			actor: 'System System',
			sentence: 'Ran the scheduled duplicate purge: 3 merged, 5 articles updated',
			badge: 'Succeeded',
			shield: false,
		},
		{
			name: 'anonymous failed login',
			item: makeItem({
				id: 4,
				action: 'auth.login_failed',
				category: 'auth',
				actor: anonymous('alex@example.com'),
				target: null,
				outcome: 'failed',
				security: true,
			}),
			actor: 'Not signed in',
			sentence: 'Failed login attempt for alex@example.com',
			badge: 'Failed',
			shield: true,
		},
		{
			name: 'failed publish',
			item: makeItem({
				id: 5,
				actor: user(4, 'Inès Duarte'),
				outcome: 'failed',
			}),
			actor: 'Inès Duarte',
			sentence: 'Failed to publish the article Spring release',
			badge: 'Failed',
			shield: false,
		},
		{
			name: 'security revoke',
			item: makeItem({
				id: 6,
				action: 'api_key.revoke',
				category: 'api_keys',
				actor: user(2, 'Jonas Weber'),
				target: target('api_key', '71', 'Mobile app'),
				security: true,
			}),
			actor: 'Jonas Weber',
			sentence: 'Revoked API key Mobile app',
			badge: 'Succeeded',
			shield: true,
		},
	]

	it.each(cases)('$name', async ({ item, actor, sentence, badge, shield }) => {
		await mountActivity({ list: () => pageOf([item]) })

		const row = rows()[0]!
		const cells = row.querySelectorAll('[role="cell"]')
		expect(textOf(cells[1])).toContain(actor.split(' ')[0])
		if (actor === 'Not signed in') {
			expect(textOf(cells[1])).toBe('Not signed in')
		}
		expect(textOf(row.querySelector('[data-testid="activity-sentence"]'))).toBe(sentence)
		const strong = Array.from(
			row.querySelectorAll('[data-testid="activity-sentence"] .font-semibold'),
		).map(textOf)
		const name = item.action === 'auth.login_failed' ? item.actor.name : item.target?.name
		expect(strong).toEqual(name ? [name] : [])
		expect(textOf(cells[cells.length - 1])).toBe(badge)
		expect(!!row.querySelector('[aria-label="Security"]')).toBe(shield)
		expect(row.className.includes('shadow-flag')).toBe(shield)
	})

	it('shows the actor initials, the key and the system badge', async () => {
		await mountActivity({ list: () => pageOf(activityItems) })

		const actorCells = Array.from(
			document.body.querySelectorAll('[data-testid="activity-actor"]'),
		)
		expect(textOf(actorCells[0])).toBe('MAMarta Alves')
		const keyCell = actorCells.find((cell) => textOf(cell).includes('Website sync'))!
		expect(textOf(keyCell)).toContain('API key')
		await expectIcon(keyCell, 'key-round')
		const systemCell = actorCells.find((cell) => textOf(cell).startsWith('System'))!
		expect(textOf(systemCell)).toBe('SystemSystem')
		await expectIcon(systemCell, 'cog')
		const anonymousCell = actorCells.find((cell) => textOf(cell) === 'Not signed in')!
		await expectIcon(anonymousCell, 'user-round-x')
	})
})

describe('Rows: targets', () => {
	it('strikes a deleted target through with a Deleted badge and links a living one', async () => {
		await mountActivity({
			list: () =>
				pageOf([
					makeItem({
						id: 1,
						action: 'media.delete',
						category: 'media',
						target: target('image', '9', 'old-banner.png', false),
					}),
					makeItem({ id: 2 }),
				]),
		})

		const targets = Array.from(
			document.body.querySelectorAll('[data-testid="activity-target"]'),
		)
		expect(targets[0]!.querySelector('.line-through')?.textContent).toBe('old-banner.png')
		expect(textOf(targets[0])).toContain('Deleted')
		expect(textOf(targets[0])).toContain('Image')
		const link = targets[1]!.querySelector('a')!
		expect(link.getAttribute('href')).toBe('/article/8/edit')
		expect(textOf(targets[1])).toContain('Article')
	})

	it('navigates from the target link without opening the details', async () => {
		await mountActivity()

		const link = document.body.querySelector<HTMLAnchorElement>(
			'[data-testid="activity-row"] a[href="/article/8/edit"]',
		)!
		link.click()
		await vi.waitFor(() => expect(router.currentRoute.value.path).toBe('/article/8/edit'))
		expect(document.body.querySelector('[data-testid="activity-details"]')).toBeNull()
	})

	it.each([
		['article', '8', '/article/8/edit'],
		['image', '4', '/media'],
		['user', '3', '/users'],
		['invite', '2', '/users'],
		['api_key', '71', '/integration/api-keys'],
	])('links a %s target to %s', async (type, id, href) => {
		await mountActivity({
			list: () => pageOf([makeItem({ id: 1, target: target(type, id, 'Some name') })]),
		})

		expect(
			document.body.querySelector('[data-testid="activity-target"] a')?.getAttribute('href'),
		).toBe(href)
	})

	it('shows a target type with no page as plain text', async () => {
		await mountActivity({
			list: () =>
				pageOf([
					makeItem({
						id: 1,
						action: 'system.update_downloaded',
						category: 'system',
						actor: system,
						target: target('release', 'v1.4.0', 'v1.4.0'),
					}),
				]),
		})

		const cell = document.body.querySelector('[data-testid="activity-target"]')!
		expect(cell.querySelector('a')).toBeNull()
		expect(textOf(cell)).toBe('v1.4.0Release')
	})

	it('shows a muted dash when there is no target', async () => {
		await mountActivity({
			list: () => pageOf([makeItem({ id: 1, target: null, action: 'auth.login' })]),
		})

		const cell = document.body.querySelector(
			'[data-testid="activity-row"] [role="cell"]:nth-child(4)',
		)!
		expect(textOf(cell)).toBe('—')
		expect(cell.querySelector('.text-muted')).toBeTruthy()
	})

	it('renders an unknown action code as it is and still opens the details', async () => {
		await mountActivity({
			list: () =>
				pageOf([
					makeItem({
						id: 1,
						action: 'article.archive',
						target: null,
					}),
				]),
		})

		const row = rows()[0]!
		expect(textOf(row.querySelector('[data-testid="activity-sentence"]'))).toBe(
			'article.archive',
		)
		row.click()
		await flushPromises()
		expect(document.body.querySelector('[data-testid="activity-details"]')).toBeTruthy()
	})
})

describe('Day grouping', () => {
	it('groups by local day in API order under separators', async () => {
		await mountActivity({
			list: () =>
				pageOf([
					makeItem({ id: 1, created_at: '2026-10-03T12:30:00Z' }),
					makeItem({ id: 2, created_at: '2026-10-03T12:10:00Z' }),
					makeItem({ id: 3, created_at: '2026-10-02T12:40:00Z' }),
				]),
		})

		expect(days()).toEqual(['3 Oct 2026', '2 Oct 2026'])
		const order = Array.from(
			document.body.querySelectorAll(
				'[data-testid="activity-day"], [data-testid="activity-row"]',
			),
		).map((element) => element.getAttribute('data-activity-id') ?? textOf(element))
		expect(order).toEqual(['3 Oct 2026', '1', '2', '2 Oct 2026', '3'])
	})
})

describe('Loading: skeletons after 150 ms', () => {
	it('draws nothing in place for 150 ms, then 4 skeleton cards and 9 skeleton rows', async () => {
		vi.useFakeTimers({ toFake: ['setTimeout', 'clearTimeout'] })
		const never = new Promise(() => undefined)
		await mountActivity({ list: () => never, summary: () => never })

		expect(document.body.querySelector('h1')?.textContent).toBe('Activity')
		expect(findButton('Export')?.disabled).toBe(false)
		expect(
			document.body
				.querySelector('[data-testid="activity-filter-bar"] input')
				?.getAttribute('aria-label'),
		).toBe('Search activity')
		expect(document.body.querySelector('[data-testid="activity-strip-skeleton"]')).toBeNull()
		expect(document.body.querySelector('[data-testid="activity-skeleton-row"]')).toBeNull()

		vi.advanceTimersByTime(149)
		await flushPromises()
		expect(document.body.querySelector('[data-testid="activity-skeleton-row"]')).toBeNull()

		vi.advanceTimersByTime(1)
		await flushPromises()
		expect(
			document.body.querySelectorAll('[data-testid="activity-strip-skeleton"]'),
		).toHaveLength(4)
		expect(
			document.body.querySelectorAll('[data-testid="activity-skeleton-row"]'),
		).toHaveLength(9)
		expect(document.body.querySelector('[role="table"]')?.getAttribute('aria-busy')).toBe(
			'true',
		)
		expect(document.body.querySelector('[data-testid="activity-pager"]')).toBeNull()
	})

	it('draws 5 skeleton cards below md and replaces them with the data on resolve', async () => {
		vi.useFakeTimers({ toFake: ['setTimeout', 'clearTimeout'] })
		let resolveList: (value: unknown) => void = () => undefined
		const pending = new Promise((resolve) => (resolveList = resolve))
		await mountActivity({ desktop: false, list: () => pending })

		vi.advanceTimersByTime(150)
		await flushPromises()
		expect(
			document.body.querySelectorAll('[data-testid="activity-skeleton-card"]'),
		).toHaveLength(5)

		resolveList(pageOf(activityItems))
		await flushPromises()
		expect(
			document.body.querySelectorAll('[data-testid="activity-skeleton-card"]'),
		).toHaveLength(0)
		expect(rows()).toHaveLength(activityItems.length)
	})
})

describe('Strip', () => {
	it('shows a calm 0 for a quiet period', async () => {
		await mountActivity({ summary: () => summaryZero })

		const texts = stripTexts()
		expect(texts[0]).toContain('214')
		expect(texts[0]).toContain('4% vs previous 7 days')
		await expectIcon(stripCards()[0], 'trending-down')
		expect(texts[1]).toContain('5')
		expect(texts[1]).toContain('4 people, 1 API key')
		expect(texts[2]).toContain('Nothing failed')
		expect(texts[3]).toContain('Nothing to flag')
		await expectIcon(stripCards()[2], 'circle-check')
		await expectIcon(stripCards()[3], 'circle-check')
		expect(stripCards()[3]!.className).not.toContain('rc-warning-soft')
		expect(stripCards()[2]!.className).not.toContain('rc-error-soft')
		const bars = stripCards()[2]!.querySelectorAll<HTMLElement>(
			'[data-testid="activity-bars"] span',
		)
		expect(Array.from(bars).map((bar) => bar.style.height)).toEqual(Array(7).fill('2px'))
	})

	it.each([
		[40, 0, 'No earlier data'],
		[40, 40, 'No change'],
	])('reads the Total sub-line for %i against %i as %s', async (total, previous, subline) => {
		await mountActivity({
			summary: () => ({
				...summaryDefault,
				total,
				previous_total: previous,
			}),
		})

		expect(stripTexts()[0]).toContain(subline)
		await expectIcon(stripCards()[0], 'trending-up', false)
		await expectIcon(stripCards()[0], 'trending-down', false)
	})

	it('sizes the bars from the series on desktop and mobile', async () => {
		await mountActivity()
		const heights = Array.from(
			stripCards()[0]!.querySelectorAll<HTMLElement>('[data-testid="activity-bars"] span'),
		).map((bar) => bar.style.height)
		expect(heights).toEqual(['9px', '13px', '11px', '18px', '16px', '20px', '13px'])
		unmountActivity()

		await mountActivity({ desktop: false })
		const mobile = Array.from(
			stripCards()[0]!.querySelectorAll<HTMLElement>('[data-testid="activity-bars"] span'),
		).map((bar) => bar.style.height)
		expect(mobile).toEqual(['7px', '11px', '9px', '14px', '12px', '16px', '11px'])
	})

	it('is not drawn when the summary fails, and the list still works', async () => {
		for (const failure of [new ApiError(500), new ApiError(403), new NetworkError()]) {
			await mountActivity({
				summary: () => {
					throw failure
				},
			})
			expect(stripCards()).toHaveLength(0)
			expect(document.body.querySelector('[data-testid="activity-strip"]')).toBeNull()
			expect(document.body.querySelector('[role="alert"]')).toBeNull()
			expect(rows()).toHaveLength(activityItems.length)
			expect(textOf(document.body.querySelector('[data-testid="activity-pager"]'))).toContain(
				'Showing 1–25 of 1,284',
			)
			unmountActivity()
		}
	})
})

describe('Empty states', () => {
	it('shows No activity yet with Export disabled and no table or pager', async () => {
		await mountActivity({
			list: () => pageOf([], { total: 0 }),
			summary: () => summaryNone,
		})

		expect(pageText()).toContain('No activity yet')
		expect(pageText()).toContain(
			'Actions on articles, media, users and API keys will appear here.',
		)
		await expectIcon(document.body.querySelector('[data-slot="root"]'), 'history')
		expect(findButton('Export')?.disabled).toBe(true)
		expect(document.body.querySelector('[role="table"]')).toBeNull()
		expect(document.body.querySelector('[data-testid="activity-pager"]')).toBeNull()
		const texts = stripTexts()
		expect(texts[0]).toContain('No data yet')
		expect(texts[1]).toContain('No data yet')
		expect(texts[2]).toContain('Nothing failed')
		expect(texts[3]).toContain('Nothing to flag')
	})

	it('offers Clear filters when filters match nothing and resets them', async () => {
		vi.useFakeTimers({ toFake: ['setTimeout', 'clearTimeout'] })
		let empty = false
		await mountActivity({
			list: () => (empty ? pageOf([], { total: 0 }) : pageOf(activityItems)),
		})
		empty = true
		const search = document.body.querySelector<HTMLInputElement>('input[type="text"]')!
		search.value = 'sitemap'
		search.dispatchEvent(new Event('input', { bubbles: true }))
		await nextTick()
		vi.advanceTimersByTime(300)
		await flushPromises()

		expect(chipTexts()).toEqual(['Search: sitemap'])
		expect(pageText()).toContain('No activity matches these filters')
		expect(pageText()).toContain('Try a different search or a wider date range.')
		expect(findButton('Export')?.disabled).toBe(false)
		expect(callsTo(SUMMARY_PATH)).toHaveLength(1)

		empty = false
		await clickButton('Clear filters')
		expect(queryObject(callsTo(LIST_PATH).at(-1))).toEqual({
			range: '7d',
			page: '1',
			size: '25',
		})
		expect(rows()).toHaveLength(activityItems.length)
		expect(chipTexts()).toEqual([])
	})
})

describe('Error with retry', () => {
	it.each([
		['a 500 response', () => new ApiError(500)],
		['a 400 response', () => new ApiError(400)],
		['a network failure', () => new NetworkError()],
	])('replaces the table with an alert after %s and retries', async (_, failure) => {
		let failing = true
		await mountActivity({
			list: () => {
				if (failing) throw failure()
				return pageOf(activityItems)
			},
		})

		expect(stripCards()).toHaveLength(4)
		expect(
			document.body
				.querySelector('[data-testid="activity-filter-bar"] input')
				?.getAttribute('aria-label'),
		).toBe('Search activity')
		const alert = document.body.querySelector('[role="alert"]')!
		expect(textOf(alert)).toContain("Couldn't load activity")
		expect(textOf(alert)).toContain('Check your connection and try again.')
		expect(findButton('Export')?.disabled).toBe(true)
		expect(document.body.querySelector('[role="table"]')).toBeNull()
		expect(document.body.querySelector('[data-testid="activity-pager"]')).toBeNull()

		failing = false
		await clickButton('Try again')

		expect(callsTo(LIST_PATH)).toHaveLength(2)
		expect(queryObject(callsTo(LIST_PATH)[1])).toEqual(queryObject(callsTo(LIST_PATH)[0]))
		expect(rows()).toHaveLength(activityItems.length)
		expect(document.body.querySelector('[role="alert"]')).toBeNull()
	})
})

describe('Forbidden (403)', () => {
	it('shows only the header and the lock panel, and goes home', async () => {
		await mountActivity({
			list: () => {
				throw new ApiError(403)
			},
		})

		expect(textOf(document.body.querySelector('h1'))).toBe('Activity')
		expect(findButton('Export')).toBeUndefined()
		expect(stripCards()).toHaveLength(0)
		expect(document.body.querySelector('[data-testid="activity-filter-bar"]')).toBeNull()
		expect(document.body.querySelector('[data-testid="activity-chips"]')).toBeNull()
		expect(document.body.querySelector('[role="table"]')).toBeNull()
		expect(document.body.querySelector('[data-testid="activity-pager"]')).toBeNull()
		await expectIcon(document.body.querySelector('main, #dashboard-content'), 'lock')
		expect(pageText()).toContain("You can't view this activity")
		expect(pageText()).toContain(
			"Your role doesn't include this page. Ask an owner or admin if you need access.",
		)

		await clickButton('Back to home')
		await vi.waitFor(() => expect(router.currentRoute.value.path).toBe('/home'))
	})

	it('shows no panel for a 401, which the API client handles globally', async () => {
		await mountActivity({
			list: () => {
				throw new ApiError(401)
			},
		})

		expect(pageText()).not.toContain("You can't view this activity")
		expect(pageText()).not.toContain("Couldn't load activity")
		expect(document.body.querySelector('[role="table"]')).toBeNull()
	})

	it('shows no panel for a 403 on an unverified session', async () => {
		await mountActivity({
			verified: false,
			list: () => {
				throw new ApiError(403)
			},
		})

		expect(callsTo(LIST_PATH)).toHaveLength(0)
		expect(pageText()).not.toContain("You can't view this activity")
	})
})